Asskkbtojl to



J. F. IVcDONNELL.

BRUSH.

APPLlc/uson man JULY 24,1916. RENEwEn MAR. H, w19.

Patemei sept. 30, i969.

- yieldingly limiting unirsi) srerus PATENT ormoni. l

JAMES F. MQDONNELL, 0F CLEVELAND, OHIO, AS'SIGNOB-TO EMIL SCHWARZ, 0F

cnrcneo, ILLrivers.

BRUSH.

Application Vfiled July 24, 1916;,

.which the following is a full, Clear, COnGSe,

and exact. description, referente beingA had to the accompanying;drawings, forming a part of this specification.

My invention'relatesto brushes and iS` 0f particular service in brushemployed for washing the interior .of bottles or other containers.l rIhe invention has for its general object the Simplified and improvedformation of a brush from a body of resilient or cushioning materialsuch as rubber.

In practising my invention l providea plurality of cleaning fingers inbody of rubber, the tips of some of these fingers be,- ing in union toform of fingers thus united a spring structure joining other fingers andthe extent to which the other fingers may be spread' apart While thebrush is in action and Qperatingto retract the same when the operationof the brush ceases or the speed of such operationv is re: duced. Thusthe extent to which some ofthe brush fingers may be spread is yieldinglylimited by the fingers whose tips are united and varies according to thespeed of the spindle which carries the brush.

I will explain my invention more fully by reference to the accompanyingdrawing showing the. preferred embodiment of my invention and in whichFigure 1 is a perspective view showing the brush of my invention inaction; Fig. 2 shows the brush in elevation and in an inactivecondition; Fig. 3 shows the brush in elevation while in action, a partof the brush structure being shown in section; and Fig. 4 is aperspective view of a water conveying tube that desirably enters intothe construction.

Like parts are indicated by similar characters of reference throughoutthe different figures.

The stock l is attached to the upper end of a spindle forming part of abottle washing machine, the lower end of the stock being threaded forthis purpose. The stock is hollowfor the passage of water and ispreferably crimped at its upper end as indicated the formation of aSpecification of Le'tterslatent. Patnted Sept.' 30, 1919,` serial no.1110.986. neueren. linien 17, ieie... serial No. atenei..

at Qtfor .the purpose of engaging the intermediate portion lofthe`,base3 ofthe brush structure, whereby thestock and brush struc.- Y

ture are `held in firm engagement. v'Union between the lornshetruotnre'andthe stool: iS further promoted by means of the Water Conveying tuberithat asses through the base portion 3, thisv tube `being 'outwardlyfiared at its ends to form wings or flanges 5 between which the beenPOftQll 0f the brush Strutture iereeeivedand Which-wings toioperatewiththe annular fastening portion 2 .to nreventnloveinent of the base 3longitudinally of the stock. rlfhe water that is conveyed through the-stock desirably issues therefrom through the hure of the tube 4 sokthat said tube serves a double purpose.

The brush structure is desirably of sym- Inetrioalforniation having e,Piiljof Central i fingers. and 7 that spring from the base 3 and whichhave their tips in imion,v the tip Portions of the vfingers 6 and 7being desire ably integrati' The loaseor inner portions ofthe linsereend 7 ,are deernbly respete tively integral with the base or innerAPortionsl ofthe ,fingere 8 and 9 between which lingers 6 and 7 aredisposed, the fingers 6 and 7 `prefereloly separating from thexiin:

' fersf and 9 remote from 4the base 3, intermediate portions of theadditional fingers 8 and thus being respectively connected with fingers6 and 7. The fingers 8 and 9 are themselves desirably bifurcated attheir upper ends to form sub-fingers 81, 91, the tips of thesesub-fingers being desirably tapered as illustrated most clearly inFio. 1. The base portion 3 `and the washing ngers are desirablyintegrally formed out of one piece' of rubber whereby no supplementalmechanical means are required for joining the fingers with their commonbase 3, though I do not wish to be limited to this arrangement. Theunited tip portions of the middle fingers 6 and 7 form a comparativelythick substantial cleaning body that may have effective scraping actionupon the surfaces being cleaned while the tapered tips of thesub-fingers 81, 91 will effectively enter senting a substantial cleaningbody to the surfaces rbeing cleaned but are highly flexible by reason oftheir separation so that the brush is not in action the spring structure6 and 7 serves to draw in the lingers to have approximately the relativearrangement illustrated `in Fig. 2 in which the brush structure mayreadily be inserted within andv withdrawn fr'omthe bottles and theguiding sleeve that is employed to direct the passage of the brushstructure4 into and out of the bottles. 1

WhileI have herein shown and particularly described the preferredembodiment of my'invention I do not wish to be limited to the precisedetailsl 0f construction shown as changes may readily'be made withoutdeparting'. from the spirit of myrinvention, 'but having thus describedmy invention I claim as new and desire to secure by Letters,v

Patent the following o l. A brush structure having two fingers formed ofresilient cushioning material, the

tip portions of these fingers being united;

and an additional finger adjacent each of the aforesaid fingers, thelatter being located between the additional fingers and connect- .edwith Vintermediate portions thereof, the first two lingers togetherconstituting a spring Vfor drawing the remaining fingers toward eachother.

2. A brush structure having two fingers formed of resilient cushioningmaterial, the tip portions of these fingers being kunited and anadditional finger whose intermediate portion is united with one of theaforesaid ingers that together constitute a spring for drawing theremaining finger inwardly.

3. A brush structure havingftwo fingers formed of resilient cushioningmaterial, the

tip portions ofthese lingersbeing united;V

and an additional finger adjacent each of the aforesaid fingers, thelatter'being locatedf between the additional fingers and Vconnected withintermediate'portions thereof,1thel first two fingers togetherconstituting' al spring for vdrawing the remaininghyfing'ers toward eachother, all o-f said fingers beingl integrally formed of the samepiece'of ma-f terial.

4.' A brush structure having Vtwo fingers y formed of resilientcushioning material, thetip portions of these fingers being united; andan additional linger whose intermediate portionfis united with one ofthe aforesaid fingers that together constitute a spring for` 65 drawingthe `remaining finger inwardly, all of said fingers being integrallyformed of the same piece of material. c

In witness whereof I hereuntok subscribe my name this twenty first dayof July,

Witnesses: s s

ARNOLD CORDES,

LILLIAN UPPER.

Copies of this patent may be obtainedfor ive cents each,'byaddressng theCommissioner of T?atents;VV

' Washington, D. C.

